- Companies
- Plumbers and heating engineers
- Westerham
- Mok South East Ltd
Mok South East Ltd
- Company number
- 17284173
- Incorporated
- 18 Jun 2026
- Registered office
- 23 Mount Pleasant, Westerham, TN16 3TP
- Nature of business
- Plumbing, heat and air-conditioning installation
Mok South East Ltd is a newly incorporated private limited company registered in Westerham, company number 17284173, one of 41 plumbing and heating companies in Westerham. Its next accounts are due at Companies House on 18 March 2028, and its first CT600 is due at HMRC on 17 June 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
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Where Mok South East Ltd is registered
The registered office is in Westerham (TN16), in the Bromley local authority area, London. Show TN16 3TP on a map.
Other trade companies in TN16
- Fuller & Sons Carpentry LtdProperty developers
- Protech Air Solutions LtdPlumbers and heating engineers
- DW Construction (South) LimitedCivil engineering
- Danvic Facilities & Refurbishment LimitedSpecialist contractors
- The Plumbing Brothers LtdFinishing trades
- Beckenham Driveways and Patios LtdInstallers
- Christmas Tree Farm Outdoors Services LtdLandscapers and gardeners
- Jak Rolling LimitedPainters and decorators
What happens if Mok South East Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 18 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 19 Mar 2028 to 18 Apr 2028 | £150 |
| 1 to 3 months late | 19 Apr 2028 to 18 Jun 2028 | £375 |
| 3 to 6 months late | 19 Jun 2028 to 18 Sep 2028 | £750 |
| More than 6 months late | From 19 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 2029 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 17284173
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 June 2026
- Registered office
- 23 Mount Pleasant, Westerham, TN16 3TP
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Westerham
Other active plumbing and heating companies registered in Westerham.
- Pal Plumbing and Heating Ltd2012
- Paq Gas Services Ltd2019
- Parker Air Conditioning Limited1987
- Parkhill Plumbing Limited1999
- Protech Air Solutions Ltd2026
- R A Plumbing Services Limited2003
- R Bolt Plumbing Services Ltd2016
- Reliacool Ac Ltd2018
All plumbing and heating companies in Westerham · All trades in Westerham · Plumbers and heating engineers across the UK
Frequently asked questions
When are Mok South East Ltd's accounts due?
Mok South East Ltd's next accounts are due at Companies House by 18 March 2028 (in 522 days), covering the period to 30 June 2027.
When is Mok South East Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 17 June 2027, due by 17 June 2028, and one for the period to 30 June 2027, due by 30 June 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Mok South East Ltd still trading?
Mok South East Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Mok South East Ltd do?
Mok South East Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Mok South East Ltd?
Mok South East Ltd was incorporated on 18 June 2026, less than a year ago.
What is the penalty if Mok South East Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Mok South East Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.